As experienced software engineers, we are accustomed to using Object Oriented (OO) techniques for our development.

有经验的软件工程师在开发时大都习惯使用面向对象(Object Oriented, OO)技术。

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As an important part of modern software engineering techniques, object-oriented methods are playing an active role in the development of modern information systems.

面向对象方法作为现代软件工程技术的重要部分，在现代信息系统的开发中发挥着积极的作用。

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And then it explicitly demonstrates object-oriented software unit test, integration test and systemic test techniques based on the software testing steps.

然后按照软件测试步骤详细阐述了面向对象软件的单元测试、集成测试和系统测试技术。

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